THE EFFECT OF REINFORCEMENT ON THE FROST RESISTANCE OF REINFORCED CONCRETE CROSS TIES

OVLIIANI ARMATURY NA MOROZOSTOIKOST' CTRUNOBETONNYKH SHPAL

Type C-56 reinforced concrete crossties have been widely utilized on USSR railroads. Observations reveal the generally satisfactory operation of these ties in the track. Nevertheless, on several sections of the North Caucasus road following a 2 to 3 years service the number of defective ties reached 2%. The most widely distributed and dangerous of the crossties defects are a) fissures, b) stripping of the metal at the ends of the ties, c) beating down of the concrete at the end of the tie, and d) transverse fissures on the sleeves. All the above flaws are the result of the same cause, namely the onset and development of fissures. It has been established that the destruction of crossties begins with the appearance of a hairline fissure in the protective layer of concrete over the metal. Then further occurs an intensive expansion of the fissure and its growth in length. When the transverse fissures reach the section beneath the rail the tie is destroyed along the diagonal or normal plane.

  • Supplemental Notes:
    • Abstract only is available in English, original untranslated as of November 1976.
  • Corporate Authors:

    USSR Ministry of Railways

    Novo-Basmannaya, Ulitsa 2
    Moscow,   USSR 
  • Authors:
    • Mamontov, Iu A
    • Nevskii, V A
  • Publication Date: 1968

Language

  • Russian

Media Info

  • Features: Figures;
  • Pagination: p. 48-50
  • Serial:

Subject/Index Terms

Filing Info

  • Accession Number: 00130252
  • Record Type: Publication
  • Source Agency: Federal Railroad Administration
  • Files: TRIS, USDOT
  • Created Date: Dec 1 1977 12:00AM